The main focus of public health interventions is to stop and manage illnesses, accidents and other health conditions via surveillance of instances and the promotion of healthy conduct , communities , and (in features relevant to human health) environments Its goal is to stop health issues from taking place or re-occurring by implementing instructional packages , growing policies , administering providers and conducting research fifty three In many circumstances, treating a illness or controlling a pathogen may be important to stopping it in others, akin to during an outbreak Vaccination packages and distribution of condoms to prevent the unfold of communicable ailments are examples of widespread preventive public health measures, as are instructional campaigns to promote vaccination and the use of condoms (including overcoming resistance to such).